Chambered in 223 Wylde (accepts both rounds, 5.56 NATO and 223 Rem)
.936" diameter under gas block.
Rifle length gas system.
Comes as seen in picture with barrel extension and extension pin installed. This barrel also has the gas port hole pre-drilled.
Barrel extension has the m4 feedramps.
This barrel utilizes the popular and versatile .223 Wylde chamber, which allows for the safe usage of 5.56 NATO ammunition and enhance reliability. Thus, being the perfect barrel for long distance shooting,